When building with --enable-daala_ec, calls to aom_write_tree() and
aom_read_tree() will convert a aom_tree_index structure with associated
aom_prob probabilities into a CDF on the fly for use with the
od_ec_encode_cdf_q15().
The number of symbols in the CDF is capped at 16, and trees that contain
more than 16 leaf nodes are handled by splitting the most likely, e.g.,
highest probability symbols, first and coding multiple symbols if
necessary.
ntt-short-1:
MEDIUM (%) HIGH (%)
PSNR 0.000227 0.000213
PSNRHVS 0.000215 0.000205
SSIM 0.000229 0.000209
FASTSSIM 0.000229 0.000214
subset1:
RATE (%) DSNR (dB)
PSNR -0.00026 0.00002
PSNRHVS -0.00026 0.00002
SSIM -0.00026 0.00001
FASTSSIM -0.00026 0.00001
Change-Id: Icb1a8cb854fd81fdd88fbe4bc6761c7eb4757dfe
When building with --enable-daala_ec, calls to aom_write() and aom_read()
use the daala entropy coder to write and read bits.
When the probability is exactly 0.5 (128), then raw bits are used.
ntt-short-1:
MEDIUM (%) HIGH (%)
PSNR -0.027556 -0.020114
PSNRHVS -0.027401 -0.020169
SSIM -0.027587 -0.020151
FASTSSIM -0.027592 -0.020102
subset1:
RATE (%) DSNR (dB)
PSNR 0.03296 -0.00210
PSNRHVS 0.03537 -0.00281
SSIM 0.03299 -0.00161
FASTSSIM 0.03458 -0.00111
Change-Id: I48ad8eb40fc895d62d6e241ea8abc02820d573f7
Rename av1_write_tree() to aom_write_tree() and move it into bitwriter.h
to match aom_read_tree() in bitreader.h.
Manually cherry-picked from aom/master:
33a143fa7a
Change-Id: I6c686cdd3e0f179d7e95c5bc6984558b62d46d67
Move code for reading and writing literals and reading trees to use
just the aom_read_bit() and aom_write_bit() function calls.
Change-Id: Id2bced5f0125a5558030a813c51c3d79e5701873
(cherry picked from aom/master commit bc1ac15846)
This should make room for compile time pluggable replacements.
Change-Id: Ib7afcffa93bf664b89a49da21a20138127443292
(cherry picked from commit 9dd0b89824)
Cherry-Picked the following commits:
0defd8f Changed "WebM" to "AOMedia" & "webm" to "aomedia"
54e6676 Replace "VPx" by "AVx"
5082a36 Change "Vpx" to "Avx"
7df44f1 Replace "Vp9" w/ "Av1"
967f722 Remove kVp9CodecId
828f30c Change "Vp8" to "AOM"
030b5ff AUTHORS regenerated
2524cae Add ref-mv experimental flag
016762b Change copyright notice to AOMedia form
81e5526 Replace vp9 w/ av1
9b94565 Add missing files
fa8ca9f Change "vp9" to "av1"
ec838b7 Convert "vp8" to "aom"
80edfa0 Change "VP9" to "AV1"
d1a11fb Change "vp8" to "aom"
7b58251 Point to WebM test data
dd1a5c8 Replace "VP8" with "AOM"
ff00fc0 Change "VPX" to "AOM"
01dee0b Change "vp10" to "av1" in source code
cebe6f0 Convert "vpx" to "aom"
17b0567 rename vp10*.mk to av1_*.mk
fe5f8a8 rename files vp10_* to av1_*
Change-Id: I6fc3d18eb11fc171e46140c836ad5339cf6c9419
Nathan E. Egge
Alex Converse
Yaowu Xu
Angie Chiang